Looze vennootschap wester - suiker - baffinaderij



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GENIBLIPUGAL IMIAGEBTEl Paten-ted May 15, 1888.

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A. FREITAG.

GENTRIPUGAL MACHINE.

No. 382,966. Patented May 15, law

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NITE STATES PATENT ANDREAS FREITAG, OF AMSTERDAM, NETHERLANDS, ASSIGNORTO NAAM- LOOZE VENNOOTSCHAP WESTER- SUIKER-RAFFINADERIJ, OF SAME PL AGE.

CENTRIFUGAL. MACHINE.

SPECIFICATION forming part of Letters Patent No. 382,966, dated May 15.1888. l

Appicution {ilod June 25, 1887. Serial No. 242,452. (No model.) Patentedin England August 27, 1885, No.10,172, and March 31, 1886, No. 4,516,-in France November 1G, 1885, No, 172,315, and in Germany March 25, 1886,No. 38,737.

To aZZ whom z5 may concern:

Beit known that I, ANDnnAs Fahrrad, a subject of the King. of Prussia,Germany, residing at the city of Amsterdam, in the King- 5 dom oftheNetherlands, have invented certain new and useful Improvements inCentrifugal Machines, (for which I have obtained patents in England, No.10,172, dated August 27, 1885, and No. et,5l6,dated March 31, 1886; inFrance,

to No. 172,315, dated November 16, 1885, and in Germany, No. 38,737,dated March 25, 1886,) of which the following is a specification.

My invention relates to an improvement in apparatus for the manufactureof rened sugar, and more particularly to centrifugal machines; and myinvention consists in certain novel features of construction andcombinations of parts, more fully described hereinafter, andparticularly pointed out in the claims.

2o Referring to the accompanying drawings, Figure 1 is a verticalcentral section through the centrifugal machine. Fig. 2 is a top planview of a portion of the apparatus, the topplate or cover beingpartially broken away to showthe partitions, some of the latter beingshown in horizontal section. Figs. 3, 4, ,and

5 showin side elevation, end elevation, and

plan, respectively, one of the wedgeshaped partition-walls; and Figs. 6,7, and 8 show in 3o side elevation, end view, and plan one of thewedgeshaped partition-walls provided with laterally-extendingdividing'blades.

The centrifugal machine, as shown in Figs.

1 and 2, is made exceedingly strong to withstand long wear and greatstrain, and is provided with a removable annular top or cover,

a, which is adapted to close the open upper side of the drum, and canbedetachably secured to the same in any suitable orwell known 4o manner.(Not shown.) In thedrumis placed a cylindrical cap, C, which fits intoan annular groove turned in the bottom of the drum A. The cap C isremovably held within the drum A by means of aspider-frame, M, which isprovided at its upper p'ortion with a hub adapted to tit over the upperend of the central spindle, D, and be removably held in place upon thesame by a nut, e, adapted to screw upon the threaded upper end of thespindle and engage the upper side of the hub of the 5o spider-frame. Thearms of said frame extend laterally and then downwardly and engage aflange around the bottom edge of 'the cap, as shown in Fig. l, which capalso has small perforationsfin its circumference and grooves g on itsouter side.

The cap O is formed with a smoothly-turned opening or bell-n1outl1 atits top. E is the usual outer nely-perforated ringvsieve of the drum. Fare partition-walls, by preference 6o wedge-shaped and cast hollow, asshown in Fig. 2. These wedges F, Figs. 3, 4,. and 5, are made with alateral rectangular bottom flange,

s, and provided with a handle, t, at the top,orequivalentmeans,forraisingit. The wedges F are inserted in the groovesg in 'the cap C,

as shown in Fig. 2. The spaces between them are parallelopipedons,whichare to contain the lling mass.

The operation of my apparatus is as follows: The filling mass comingfrom the cooler is to be brought into the drum A, so that all thecompartments between the wedgepieces F thereof are completely filled.The cover a is then put on drum A and fastened on the same in anysuitable manner. The centrifugal machine is now set in motion, wherebythe crystallizing of the lling mass is produced and the green shirup isthrown off. This done, the necessary claying material is putin through8o the opening of the cap C and will be very equally distributed,andwill penetrate through the holesfinto the compartments containing thesugar. Then warm `air coming from an air-heating apparatus of anyconstruction is guided by means of a hose, N, provided with a soft feltring,n, at its lower end, Fig. 1, into the cap C.. The warm airpenetrates through the holes fand in a short time completely dries thesugar. The machine is now stopped and the 9o cakes of sugar producedbetween the wedges removed. For this purpose the cover a will be removedand the cap C taken out. All that now is required is to draw up thewedges F, taking hold of them by the handles t, whereby 9 5 the cakes ofsugar,which rest on their bottom flanges, s, are simultaneously raisedout of the drum. I may also provide the wedges F on the side of thebottom ilange, s, with longitudinal blades w,of thin sheet metal, asshown in Figs. 6, 7, and 8, which blades are perforated and riveted onthe side of the wedge; or I may insert the blades w into groovesprovided on the bottom lange side of the wedge, so that the blades areremovable. These dividing-blades cause the cakes of sugar to be formedin several long narrow strips, which may be easily separated and brokenapart by hand after the cakes have been thoroughly dried and removedfrom the drum.

It is clearly evident that my invention can be used in connection withcentrifugal machines employing xed bearings,or with those usingbuffer-bearings,77 and it is also evident that numerous slight changesmight be resorted to in the form and arrangement of the parts describedwithout departing from the spirit and scope of my invention; hence I .do4 not wish to limit myself strictly to the construction herein setforth, but consider myself entitled to all such slight changes.

Having now particularly described and ascertained the nature of myinvention and in what manner the same is to be performed, I declare thatwhat I claim is- 1. The combination,with a rotary drum and a perforatedcap centrally located within the same, of partitions removably locatedwithin said drum, each provided with a lateral flange oreXtension uponitslower end and with ahandle upon its upper end, said partitionsforming compartments between the peripheries of the drum and cap,substantially as described.

2. The combinatiomwith a rotary drum and aperforated cap removablylocated in the drum and provided with vertical grooves inits outerperiphery, of partitions removably located in the drum and held in thegrooves of the cap, said partitions being provided with lateral flangesupon their lower edges, and with longitudinal vertical blades projectingfrom the same sides of the partitions as thevlateral lsaid partitionsentering said grooves in the inner cap or drum,and means whereby saidpartitions can be removed, substantially as de scribed.

4. The conibinatiomwith a rotary drum and a perforated inner drum or capcentrally located within the outer drum,of removable partitions formingcompartments between the outer drum and the inner drum or cap, and alateral ilange or extension npon the lower end of each partition formingthe bottoms of said compartments, for the purpose described.

In testimony whereof I have signed my name to this specication'in thepresence of two subscribing witnesses.

ANDREAS FREITAG.

Witnesses:

B. ROI, AUGUsT MHLE.

